Replace Your Car's AC Thermal Expansion Valve or Orifice Tube

In Tune Auto Repair


Your car or truck's AC system is under extreme pressure and the thermal expansion valve or orifice tube monitors the amount of pressure and the temperature of your A/C system. It calculates the precise amount of refrigerant that can safely go into the evaporator. A failing expansion valve or orifice tube often causes a vehicle's air conditioner to blow hot air.

Replace or Repair

  • Expansion Valves: Too much refrigerant causes your evaporator to get too cold whereas too little refrigerant would result in inadequate cooling. The expansion valve is a complex valve that regulates refrigerant flow. This process of metering the refrigerant adjusts the flow according to the temperature of the refrigerant in the evaporator coil. Talk to one of the pro mechanics at In Tune Auto Repair, as this part can be replaced on its own and does not require the entire replacement of the AC assembly.
  • Orifice Tubes: Unlike the expansion valve, the orifice tube is a simple fixed device with no moving parts. It therefore cannot vary the flow of refrigerant into the evaporator, but rather causes a permanent restriction in the system. However, like the expansion valve the orifice tube regulates refrigerant flow through the system and filters debris which may come through in its screen. Often fixing a "bad orifice tube" requires replacing the entire evaporator assembly.

More AC Repair Services:

Truck and Car AC Repair Services

Freon Recharging Services For Your Car Or Truck

AC Evaporator Services


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Car & Truck Care, near Elkton, MD

The Owner Mike is the most Honest Caring person you would ever want to meet. His guys that work on the cars with him are Awesome! So Polite and Always discuss what needs to be done, why and then give you the Best Quote on repairs and trys to get you and in out as soon as possible! I would recommend In Tune before anyone! Check them out, I promise you will Not Regret You Did!

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Car & Truck Care, near Elkton, MD

The only shop I trust to work on my Honda when it's a job I can't personally tackle. Shop is immaculate! Mike is honest and his prices are very reasonable.

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